Rail extrusion



FIG. 1 is a perspective view of a rail extrusion showing my new design,

FIG. 2 is an end elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevational view thereof; and,

FIG. 5 is a bottom plan view thereof.

The drawings contain a symbolic break. The portion between the break lines forms no part of the claimed design. 

CLAIM The design for a rail extrusion, as shown and described. 